Quantum-Si Incorporated develops and commercializes next-generation protein sequencing (NGPS) technology that enables single-molecule, amino acid-level detection of proteins for proteomics research. The company generates revenue through the sale of proprietary instruments (including the Platinum and Platinum Pro platforms) along with consumable kits, software, and scientific partnerships, serving academic research institutions, biopharma companies, contract manufacturers, government agencies, and industrial customers worldwide. Quantum-Si competes in the broader proteomics market by offering superior resolution, simpler workflows, and lower capital costs compared to legacy technologies such as mass spectrometry and affinity-based methods, positioning itself as a disruptive alternative to both established life sciences incumbents and emerging competitors.